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Study on the Effect and Mechanism of Impregnation and Hot Pressing Process on the Structures and Properties of Carbon Paper
Received:August 25, 2023  
DOI：10.11980/j.issn.0254-508X.2024.03.003
Key Words:carbon paper  impregnation  hot pressing  conductivity  tensile strength
Fund Project:浙江省“尖兵”“领雁”研发攻关计划（2022C01066）。
Author NameAffiliationPostcode
WU Jinhan School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
SHA Lizheng* School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
ZHAO Huifang School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
WU Junyi School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
YUAN Tianzhong School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
SUN Qianyu School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
GUO Daliang School of Environment and Natural Resources， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
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Abstract:The phenolic resin distribution and morphological structure during the impregnation and curing process of carbon paper were studied， exploring the effect of impregnation and hot pressing process on the properties of carbon paper. The results showed that the maximum impregnation increment of phenolic resin for pre-impregnated carbon paper was up to 154.9% when the impregnation time and phenolic resin concentration were 4 min and 11%， respectively. The prepared carbon paper after hot-pressed had the best performance when the hot pressing temperature， time and pressure were 160 ℃， 20 min and 3.0 MPa， respectively， of which the resistivity and tensile strength of carbon paper were 27.1 mΩ·cm and 103.9 N/cm， respectively.
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